Shoe base



FIG. 1 illustrates a top perspective view of an embodiment of a shoe base according to the present disclosure;

FIG. 2 illustrates a left side elevational view thereof;

FIG. 3 illustrates a right side elevational view thereof;

FIG. 4 illustrates a front side elevational view thereof;

FIG. 5 illustrates a back side elevational view thereof;

FIG. 6 illustrates a top plan view thereof; and,

FIG. 7 illustrates a bottom plan view thereof.

The broken lines depict portions of the shoe base that form no part of the claimed design. 

CLAIM The ornamental design for a shoe base, as shown and described. 